Update bug URLs from naclports to webports

ports/eigen3/build.sh

 # Copyright 2015 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 CTEST_EXECUTABLES="
   basicstuff
   cholesky
   determinant
   geo_transformations
   inverse
 "
 
 EXECUTABLES="
   test/basicstuff
   test/cholesky
   test/determinant
   test/geo_transformations
   test/inverse
 "
 
 EXTRA_CMAKE_ARGS="-DEIGEN_BUILD_PKGCONFIG=OFF -DEIGEN_SPLIT_LARGE_TESTS=OFF"
 MAKE_TARGETS="$CTEST_EXECUTABLES"
 
 # Eigen tests are flakey on the bots:
-# https://bugs.chromium.org/p/naclports/issues/detail?id=223
+# https://bugs.chromium.org/p/webports/issues/detail?id=223
 # TODO(sbc): re-enable if we can de-flake the tests
 TESTS_DISABLED=1
 
 TestStep() {
   # Eigen has ~600 tests, we only build a few
   ChangeDir ${BUILD_DIR}
   if [ ${NACL_ARCH} = "pnacl" ]; then
     return
   fi
   for exe in ${CTEST_EXECUTABLES}; do
     LogExecute test/$exe.sh
   done
 }